A potential difference of 12 V produces a
current of 0.90 A in a piece of copper wire.
What is the resistance of the wire?
V = I*R, so
R = V/I
12/0.9 = ___ Ohms
133.3333
sorry that answer was wrong
the answer is 13.33333
To determine the resistance of the copper wire, you can use Ohm's Law, which states that the resistance (R) is equal to the ratio of the potential difference (V) across a conductor to the current (I) passing through it. The formula for Ohm's Law is:
R = V / I
Given that the potential difference (V) is 12 V and the current (I) is 0.90 A, you can substitute these values into the formula to find the resistance (R):
R = 12 V / 0.90 A
R = 13.33 ohms
Therefore, the resistance of the copper wire is approximately 13.33 ohms.